#include<setjmp.h>
#include<stdio.h>
#include<stdlib.h>

static void f1(int, int, int, int);
static void f2(void);

static jmp_buf jmpbuffer;
static int globval;

int main(void)
{
	int autoval;
	register int regival;
	volatile int volaval;
	static int statval;

	globval = 1; autoval = 2; regival = 3; volaval = 4; statval = 5;

	if(setjmp(jmpbuffer) != 0) {
		printf("after longjmp: \n");
		printf("globval = %d, autoval = %d, regival = %d, "
				"volaval = %d, statval = %d\n", globval, autoval, 
				regival, volaval, statval);
		exit(0);
	}

	globval = 95; autoval = 96; regival = 97; volaval = 98; statval = 99;

	f1(autoval, regival, volaval, statval);
	exit(0);
}

static void f1(int i, int j, int k, int l)
{
	printf("in f1(): \n");
	printf("globval = %d, autoval = %d, regival = %d, "
			"volaval = %d, statval = %d\n", globval, i, j, k, l);
	f2();
}

static void f2(void)
{
	longjmp(jmpbuffer, 1);
}
